4.4 a 2x3 table |
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You see here a 2 x 3 table, a table with two rows and three columns. The borders do not count in the format of a table..
It concerns data about a ship in which 600 passengers travel. The variables are gender and class. In the past, a classification in three classes was normal. Nowadays the classes are called: first, business and economy class.
You cannot complete this table with one known cell frequency. Two of these are necessary. A 2x3 table has two so-called "degrees of freedom".
This is the sample table with the observed cell frequencies.
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